Pool cleaner with both charge and discharge modes

Abstract

This utility model discloses a pool cleaning machine with two charging modes, comprising: a main unit, a power supply system, a battery, a circuit board, a tow cable, and an external power supply box. The circuit board is equipped with a control system and a charging module. The main unit and the tow cable are detachably connected. When the main unit, tow cable, and external power supply box are connected in sequence, and the external power supply box is connected to mains power, electrical energy flows from the mains power to the main unit and the battery. The control system controls the external power supply box to power the load of the main unit, allowing the main unit to perform cleaning work. Simultaneously, the control system controls the external power supply box to charge the battery through the charging module. When the main unit is disconnected from the tow cable, electrical energy no longer flows from the mains power to the main unit and the battery. The control system controls the battery to power the load of the main unit, allowing the main unit to perform cleaning work. This effectively solves the problems of poor flexibility of the main unit when the tow cable is attached and low power and short working time of the main unit when the tow cable is not attached.

Description

Technical Field

[0001] This utility model belongs to the technical field of swimming pool cleaning equipment, specifically relating to a swimming pool cleaning machine that combines two charging and discharging modes. Background Technology

[0002] The power supply method of a pool cleaner is a key factor determining its performance. Currently, there are two main solutions: corded systems rely on mains power, which can provide high power and long working time, but the presence of the cable limits its flexibility and causes problems such as tangling and transportation; cordless systems use built-in batteries, which improves the convenience of use, but the battery life is limited and it is difficult to meet the needs of long-term and large-area cleaning.

[0003] Both solutions have their advantages and disadvantages, and neither can simultaneously meet the dual needs of efficient cleaning and flexible use.

[0004] Therefore, how to design a pool cleaner that combines two charging and discharging modes to overcome the limitations of existing technologies and achieve a balance between high power, long battery life, and high flexibility is a core technical problem that urgently needs to be solved in the field of pool cleaners. Utility Model Content

[0005] The purpose of this invention is to provide a pool cleaning machine that combines two charging and discharging modes, addressing the problems in the existing technology.

[0006] Therefore, the above-mentioned objective of this utility model is achieved through the following technical solution:

[0007] This pool cleaner features two charging and discharging modes. It includes a main unit, a power supply system, a battery, a circuit board, a tow cable, and an external power supply box. The circuit board houses the control system and a charging module. The main unit and the tow cable are detachably connected. When the main unit, tow cable, and external power supply box are connected in sequence, and the external power supply box is connected to AC power, electrical energy flows from AC power to the main unit and battery. The control system controls the external power supply box to power the load of the main unit, allowing the main unit to perform cleaning operations. Simultaneously, the control system controls the external power supply box to charge the battery via the charging module. When the main unit is disconnected from the tow cable, electrical energy no longer flows from AC power to the main unit and battery. The control system controls the battery to power the load of the main unit, allowing the main unit to perform cleaning operations.

[0008] While adopting the above technical solutions, this utility model may also adopt or combine the following technical solutions:

[0009] As a preferred technical solution of this utility model: when the host and the tow cable are connected, the battery and the circuit board are both electrically connected to the tow cable; when the host and the tow cable are disconnected, the battery and the circuit board are both electrically disconnected from the tow cable.

[0010] As a preferred technical solution of this utility model: the main unit includes a casing and a sealed compartment, the sealed compartment being located inside the casing, and the battery and circuit board being located inside the sealed compartment.

[0011] As a preferred technical solution of this utility model: the power supply system includes cable 2 and connector 2. The battery and circuit board 1 are both connected to connector 2 through cable 2. Connector 2 is installed on the casing. The tow cable includes cable 1 and connector 1. One end of cable 1 is connected to connector 1. Connector 1 and connector 2 are detachably connected.

[0012] As a preferred technical solution of this utility model: the external power supply box includes a box body and a connector three. The connector three is installed on the box body, and the other end of the cable one is connected to a connector four. The connector three and the connector four are detachably connected.

[0013] As a preferred technical solution of this utility model: the external power supply box includes an external power cord and a plug, and the box body, the external power cord and the plug are connected in sequence. The external power cord can be connected to the mains power through the plug.

[0014] As a preferred technical solution of this utility model: the external power supply box includes a switch, an AC-DC power module and a second circuit board. The switch is installed on the second circuit board. The AC-DC power module and the second circuit board are located inside the box. When the switch is turned on, the electrical energy converted by the AC-DC power module is transmitted to the first cable. When the switch is turned off, the electrical energy converted by the AC-DC power module cannot be transmitted to the first cable.

[0015] As a preferred technical solution of this utility model: When the external power supply box is connected to the main unit, the control system switches the pool cleaner to the external power supply channel. The external voltage detection point and the external current detection point detect the voltage and current of the external power supply, respectively, and adjust the output of the external power supply to supply power to the load through the external control signal. At the same time, the charging module receives electrical energy from the external power supply through the internal charging input terminal to charge the battery. The control system sets the charging current of the charging module according to the working status and detects the battery charging current in real time through the battery current detection point. The control system manages the external power input, load power supply and battery charging in real time. When the external power supply box is disconnected from the main unit, the control system switches the pool cleaner to the battery power supply channel and inputs electrical energy to the load through the battery input terminal.

[0016] As a preferred technical solution of this utility model: the control system includes a voltage sampling circuit, a current sampling circuit, a bidirectional current sampling circuit, and a control logic unit. The voltage sampling circuit detects the voltage of the external power supply interface and the battery power supply; the current sampling circuit detects the current of the external power supply interface and the battery power supply; the bidirectional current sampling circuit detects the charging and discharging state of the battery; the control logic unit switches the power supply channel and adjusts the charging current of the charging module according to the voltage and current sampling results; when a voltage input is detected in the external power channel and the voltage is within a reasonable range, the control system controls the use of the external power channel to power the host and shuts down the battery power supply track; when the battery voltage is detected to be lower than a preset threshold, the control system adjusts the charging current of the charging module according to the current consumption of the external power channel without exceeding the total power of the external power supply and opens the battery charging channel.

[0017] As a preferred technical solution of this utility model: the external power supply channel detects the power supply status of the external power supply box through a voltage sampling circuit and a current sampling circuit; the charging module detects the charging status of the battery through a voltage sampling circuit and a current sampling circuit.

[0018] Compared with existing technologies, the pool cleaner of this invention, which combines two charging and discharging modes, has the following beneficial effects: The pool cleaner combines two charging and discharging modes. In the first mode, when the main unit, tow cable, and external power supply box are connected in sequence, and the external power supply box is connected to mains power, electrical energy flows from the mains power to the main unit and battery. The control system controls the external power supply box to power the load of the main unit, allowing the main unit to perform cleaning work. Simultaneously, the control system controls the external power supply box to charge the battery via the charging module. In the second mode, when the main unit is disconnected from the tow cable, electrical energy no longer flows from the mains power to the main unit and battery. The external power supply box no longer supplies power to the load of the main unit and battery. The control system controls the battery to power the load of the main unit, allowing the main unit to perform cleaning work. In the first charging and discharging mode, the main unit charges and operates simultaneously, solving the problem of low power and short working time when only the battery powers the load without the tow cable. The external power supply box, connected via the tow cable, powers the main unit of the pool cleaner, providing high power and long-term working capability. In the second charging and discharging mode, the problem of poor flexibility caused by the tow cable is solved. Therefore, the pool cleaner features two charging and discharging modes, effectively solving the problems of poor main unit flexibility when equipped with a tow cable and low main unit power and short working time when not equipped with a tow cable. It can achieve high-power, long-duration operation while also offering flexible wireless operation. Combining the advantages of both charging and discharging modes improves cleaning efficiency and user experience. It not only achieves the dual goals of efficient energy management and flexible power supply but also enhances user experience and equipment reliability through automatic control. Attached Figure Description

[0019] Figure 1The circuit diagram of this utility model shows the battery power supply path for a pool cleaner with two charging modes.

[0020] Figure 2 The internal charging path is shown in the circuit design diagram of the pool cleaner with two charging modes of this utility model.

[0021] Figure 3 The external charging path is shown in the circuit design diagram of the pool cleaning machine with two charging modes of this utility model.

[0022] Figure 4 The external power supply path is shown in the circuit design diagram of the pool cleaning machine with two charging modes of this utility model.

[0023] Figure 5 This is a view of the analog connection portion of the control system in the pool cleaning machine of this utility model, which has two charging modes.

[0024] Figure 6 This is a schematic diagram of the external power supply box in the pool cleaning machine of this utility model, which has two charging modes.

[0025] Figure 7 This is a schematic diagram of the structure of the pool cleaning machine of this utility model, which has two charging modes.

[0026] Figure 8 This is a schematic diagram of the main unit of the pool cleaning machine of this utility model, which has two charging modes.

[0027] Figure 9 This is a schematic diagram of the tow cable of the pool cleaner with two charging modes according to this utility model.

[0028] Figure 10 This is a schematic diagram of the main unit and part of the tow cable of the pool cleaning machine with two charging modes according to this utility model.

[0029] In the diagram: 1. Trailing cable; 2. External power supply box; 3. Connector 1; 4. Connector 2; 5. Connector 3; 6. Housing; 7. Sealed chamber; 8. External power cord; 9. Plug; 10. Switch button; 11. Cable 1; 12. Cable 2; 13. Box body; 14. Connector 4; 15. Water outlet; 16. Walking structure; 17. Roller brush. Detailed Implementation

[0030] See attached document Figure 1-10 The present invention will be further described in detail with reference to specific embodiments.

[0031] like Figure 6-10, a pool cleaner with two charging and discharging modes, includes a main body, a power supply system. The power supply system includes a battery, a circuit board 1, a towing cable 1 and an external power supply box 2. A control system and a charging module are arranged on the circuit board 1. The connection between the main body and the towing cable 1 is detachable. When the main body, the towing cable 1 and the external power supply box 2 are connected in sequence and the external power supply box 2 is connected to the mains power, electrical energy flows from the mains power to the main body and the battery. The control system controls the external power supply box 2 to supply power to the load of the main body, and the main body can perform cleaning work. At the same time, the control system controls the external power supply box 2 to charge the battery through the charging module. When the main body is disconnected from the towing cable 1, electrical energy no longer flows from the mains power to the main body and the battery. The control system controls the battery to supply power to the load of the main body, and the main body can perform cleaning work.

[0032] Specifically, the battery is used to store electrical energy and supply power to the load of the main body. The charging module is used to charge the battery using the electrical energy from the external power supply box 2. The external power supply box 2 provides mains power input, is used to supply power to the load of the main body, and is also used to charge the battery through the charging module.

[0033] In this way, the pool cleaner has two charging and discharging modes. The first charging and discharging mode is: when the main body, the towing cable 1 and the external power supply box 2 are connected in sequence and the external power supply box 2 is connected to the mains power, electrical energy flows from the mains power to the main body and the battery. The control system controls the external power supply box 2 to supply power to the load of the main body, and the main body can perform cleaning work. At the same time, the control system controls the external power supply box 2 to charge the battery through the charging module.

[0034] The second charging and discharging mode is: when the main body is disconnected from the towing cable 1, electrical energy no longer flows from the mains power to the main body and the battery. The control system controls the battery to supply power to the load of the main body, and the main body can perform cleaning work.

[0035] In the first charging and discharging mode, the main body works while charging. The external power supply box 2 supplies power to the main body through the towing cable 1, providing high power and long working hours, solving the problems of low equipment power and short working hours when only using the battery to supply power to the load without the towing cable 1. In the second charging and discharging mode, the problem of poor flexibility caused by the towing cable 1 is solved. Therefore, the pool cleaner has two charging and discharging modes, effectively solving the problems of poor flexibility of the main body when there is a towing cable 1 and low power and short working hours of the main body when there is no towing cable 1. It can both achieve high-power long-time operation and operate flexibly in the wireless mode. Combining the advantages of the two charging and discharging modes, it achieves the dual goals of efficient energy management and flexible power supply, improving cleaning efficiency and user experience.

[0036] In this application, "can" means "be able to".

[0037] The load in this application includes a water pump motor, a travel motor, indicator lights, and / or Bluetooth, etc. Water enters the interior of the housing 6 through the water inlet at the bottom of the housing 6. The water pump motor sucks up dirt, leaves, algae, and other impurities from the water, and the filtered water is sprayed out from the outlet 15 of the main unit. The travel motor provides power to the travel structure 16, enabling the main unit to move freely between the bottom and walls of the pool, and the roller brush 17 cleans the bottom and walls of the pool. The travel structure 16 includes wheels, etc.

[0038] The charging module's main function is to convert the DC power supplied by the external power supply box 2 connected to the mains into DC power suitable for battery charging. At the same time, through precise voltage and current control, it provides safe and efficient charging services for the battery.

[0039] Both the battery and the circuit board are standard components, but they are not shown in the accompanying drawings of this application.

[0040] When the main unit and the tow cable 1 are connected, the battery and the circuit board 1 are electrically connected to the tow cable 1. When the main unit is disconnected from the tow cable 1, the battery and the circuit board 1 are electrically disconnected from the tow cable 1.

[0041] The main unit includes a housing 6 and a sealed compartment 7. The sealed compartment 7 is located inside the housing 6, and the battery and circuit board are located inside the sealed compartment 7.

[0042] The sealed chamber 7 of the pool cleaner primarily protects the internal components from external water, ensuring the normal operation and durability of the equipment. The battery and circuit board are housed within the sealed chamber 7, which protects them from water and prevents leakage.

[0043] The power supply system includes cable 12 and connector 4. The battery and circuit board 1 are connected to connector 4 via cable 12. Connector 4 is mounted on the housing 6. The cable 1 includes cable 11 and connector 3. One end of cable 11 is connected to connector 3. Connector 3 and connector 4 are detachably connected.

[0044] Connector 3 and connector 4 are detachably connected, and connector 4 is mounted on the housing 6, thus forming a detachable connection between the main unit and the tow cable 1. When connector 3 and connector 4 are connected, the main unit and the tow cable 1 are connected; when connector 3 and connector 4 are disconnected, the main unit and the tow cable 1 are disconnected.

[0045] Connector 2 4 is installed on housing 6. Specifically, there are two scenarios: the first scenario is that connector 2 4 is installed directly on housing 6; the second scenario is that cable 2 12 extends a short distance outside housing 6, and the portion of cable 2 12 located outside housing 6 is connected to connector 2 4.

[0046] Both the battery and the circuit board are connected to the connector 4 via cable 2 12. Specifically, one end of cable 2 12 is connected to connector 2 4, and the other end of cable 2 12 is connected to the battery and the circuit board.

[0047] After connector 3 and connector 4 are connected, the external power supply box 2 transmits electrical energy and / or data to cable 11, cable 11 transmits electrical energy and / or data to cable 22, cable 22 transmits electrical energy and / or data to circuit board 1 and battery, data is transmitted from circuit board 1 and battery to cable 22, data is transmitted from cable 22 to cable 11, and data is transmitted from cable 11 to external power supply box 2.

[0048] Preferably, the connection between connector 3 and connector 4 is waterproof and detachable.

[0049] Preferably, the detachable connection between connector 3 and connector 4 is an inductive connection, a plug-in connection, or a rotary connection.

[0050] Inductive connection refers to the transfer of electrical energy between one part of connector 3 and the other part of connector 4 through changes in the electromagnetic field. It utilizes the changing magnetic field to generate current in the conductor, such as wireless charging technology.

[0051] A rotary connection refers to a connection where a part of connector 3 can be rotated relative to another part of connector 4 so that it can be disassembled or reassembled.

[0052] A plug-in connection refers to a connection where a part of connector 3 can be pulled out relative to the other part of connector 4, and a connection where a part of connector 3 can be inserted relative to the other part of connector 4, allowing for disassembly or connection.

[0053] Preferably, the connection between connector 3 and connector 4 is a high-strength connection, capable of withstanding the tension when the host machine drags the tow cable 1. A high-strength connection refers to the state in which connector 3 and connector 4 are joined together by a strong interaction force. This bonding force typically manifests as high bonding strength, capable of resisting external forces and ensuring the stability and durability of the connection.

[0054] The external power supply box 2 includes a box body 13 and connector 3 5.

[0055] Connector 3.5 is installed on housing 13.

[0056] The other end of cable one is connected to connector four 14.

[0057] The connection between connector 3.5 and connector 4.14 is detachable.

[0058] The connection between connector 3 (5) and connector 4 (14) is detachable, which facilitates the separation of the external power supply box 2 and the tow cable 1, making it easier to move the external power supply box 2 and the tow cable 1 separately.

[0059] The external power supply box 2 includes an external power cord 8 and a plug 9. The box body 13, the external power cord 8 and the plug 9 are connected in sequence. The external power cord 8 can be connected to the mains power through the plug 9.

[0060] The external power supply box 2 includes a switch, an AC-DC power module, and a second circuit board. The switch is mounted on the second circuit board. The AC-DC power module and the second circuit board are located inside the box 13. When the switch is turned on, the electrical energy converted by the AC-DC power module is transmitted to the first cable 11. When the switch is turned off, the electrical energy converted by the AC-DC power module cannot be transmitted to the first cable 11.

[0061] The switch rests against the inner wall of the housing 13. The operator presses the part of the housing 13 corresponding to the switch from the outside of the housing 13, that is, presses the switch with the switch button 10 to activate the switch.

[0062] AC-DC power modules are used to convert AC mains power into low-voltage DC power. Switches control the AC-DC power module to power loads and batteries.

[0063] Specifically, both cable 11 and cable 212 contain power lines and signal lines. The signal lines communicate with the host to switch the host's operating mode, such as the pool bottom operating mode or the pool wall operating mode.

[0064] When the external power supply box 2 is connected to the main unit, the control system switches the pool cleaner to the external power supply channel. The external voltage detection point and the external current detection point detect the voltage and current of the external power supply, respectively, and adjust the output of the external power supply to supply power to the load through the external control signal. At the same time, the charging module receives electrical energy from the external power supply through the internal charging input terminal to charge the battery. The control system sets the charging current of the charging module according to the working status and detects the battery charging current in real time through the battery current detection point. The control system manages the external power input, load power supply and battery charging in real time. When the external power supply box 2 is disconnected from the main unit, the control system switches the pool cleaner to the battery power supply channel and inputs electrical energy to the load through the battery input terminal.

[0065] The external power supply here refers to the external power supply output from external power supply box 2.

[0066] The control system includes a voltage sampling circuit, a current sampling circuit, a bidirectional current sampling circuit, and a control logic unit. The voltage sampling circuit detects the voltage of the external power supply interface and the battery power supply; the current sampling circuit detects the current of the external power supply interface and the battery power supply; the bidirectional current sampling circuit detects the charging and discharging state of the battery; the control logic unit switches the power supply channel and adjusts the charging current of the charging module based on the voltage and current sampling results; when a voltage input is detected on the external power channel and the voltage is within a reasonable range, the control system controls the use of the external power channel to power the host and shuts down the battery power supply track; when the battery voltage is detected to be lower than a preset threshold, the control system adjusts the charging current of the charging module according to the current consumption of the external power channel, without exceeding the total power of the external power supply, and opens the battery charging channel.

[0067] Reasonable range refers to the voltage range that the host can accept.

[0068] The external power supply channel detects the power supply status of the external power supply box 2 through voltage sampling circuit and current sampling circuit; the charging module detects the charging status of the battery through voltage sampling circuit and current sampling circuit.

[0069] Specifically, the control system includes a link control section, an analog control section, and a power control section. The link control section includes switch and battery auxiliary control; the switch turns the host on or off, and the battery auxiliary control adjusts the battery power supply mode. The analog control section includes multiple analog input pins to receive sensor signals. The power control section has multiple power control pins, including charging output and power reset; the charging output pin controls the charging status, and the power reset pin resets the power system. The control system receives sensor signals through the control pins of the link control section and the analog input pins of the analog control section, optimizes energy distribution, and adjusts the power output through the power control section to achieve stable operation of the host.

[0070] The charging module includes an integrated circuit setting pin and an integrated circuit status pin. The integrated circuit setting pin configures the charging mode and charging current and charging voltage parameters, while the integrated circuit status pin indicates the charging status and fault information.

[0071] Example 1

[0072] like Figure 1 As shown, this utility model's pool cleaning machine, which combines two charging modes, achieves efficient operation through both external power supply and battery power. Its workflow is as follows:

[0073] External power supply mode:

[0074] When the external power supply box is connected to the host via cable 1, external power enters the system through the EXT IN input terminal. The voltage and current of the external power supply are monitored in real time through the EXT VOLTAGE and EXT CURRENT detection points, respectively, and the output is regulated by the EXTCONTROL signal. The control system prioritizes using the external power supply to power the load, while simultaneously transferring a portion of the electrical energy to the charging module through the INT CHG IN internal charging input terminal to charge the battery.

[0075] The charging module configures charging parameters such as charging current and charging voltage through the ICM SET pin, and monitors the charging status in real time, such as charging completion and overvoltage protection, through the ICM STAT pin, to ensure a safe and efficient charging process.

[0076] Battery powered mode:

[0077] When the external power supply is disconnected, the control system automatically switches to battery-powered mode. The battery provides power through the BATT IN input terminal, and the discharge current is monitored in real time by the BAT CURRENT detection point. The output is adjusted by the BAT CONTROL signal to ensure stable operation of the load. In this mode, the control system optimizes energy distribution, prioritizing the normal operation of the cleaning machine's core functions while extending battery life.

[0078] Charging management:

[0079] In external power supply mode, the charging module configures charging parameters via the ICM SET pin and monitors the charging status in real time via the ICMSTAT pin. When the battery level falls below a preset threshold, the control system automatically initiates the charging process to ensure the battery is always fully charged for use when the external power supply is disconnected.

[0080] Automatic control and energy optimization:

[0081] The control system uses the POWER BUTTON and BATT AUX CONTROL pins on the Link Control 1 section to control device startup, shutdown, and battery power mode adjustment. Simultaneously, the Analog Control section receives sensor signals (such as temperature and current) via the ANALOG MIX1 pin to optimize energy distribution in real time. The Power Control section adjusts the power output via the CHGOUT and POWER RST pins to ensure stable system operation under different power supply modes.

[0082] Mode switching and energy management:

[0083] When the external power supply is reconnected, the control system automatically switches back to external power supply mode and continues charging the battery. This seamless switching between external power and battery power modes ensures the pool cleaner operates continuously and efficiently under various working conditions.

[0084] Through the above-described workflow, the pool cleaning machine of this invention, which combines two charging modes, achieves intelligent switching and efficient management of external power supply and battery power supply modes. This ensures continuous operation of the equipment and extends the battery's lifespan. At the same time, the charging module and control system ensure the safety and stability of the charging process.

[0085] like Figures 1-5 The circuit design shown is as follows:

[0086] (1) Battery power path:

[0087] BATT IN: Battery input terminal, connected to the battery to receive electrical energy from the battery.

[0088] BAT CURRENT: Battery current detection point, used to monitor the charging and discharging current of the battery in real time.

[0089] CHG OUT: Charging output terminal, connected to a load or charger to power the load or charge the battery.

[0090] BAT CONTROL: Battery power control signal, used to start the battery to power the subsequent circuitry.

[0091] OTC4375A: A charging controller chip used to manage and control the battery charging process, ensuring charging safety and efficiency.

[0092] (2) Internal charging path:

[0093] INT CHG IN: Internal charging input terminal, connected to the battery or other power source to receive charging power.

[0094] INT CHA CURRENT: Internal charging current detection point, used to monitor the internal charging current.

[0095] INT CHA CONTROL: Internal charging control signal, used to adjust the internal charging status (such as charging mode switching).

[0096] EXT AUX: External auxiliary power input terminal, connected to an auxiliary power source to provide additional power support.

[0097] POWER OUT: Power output terminal, connected to the load or other devices to supply power to the load.

[0098] (3) External power supply path:

[0099] EXT IN: External input terminal, connected to an external power supply box for receiving external power.

[0100] EXT VOLTAGE: External voltage sensing point used to monitor the voltage of an external power source.

[0101] EXT CURRENT: External current sensing point used to monitor the current of an external power source.

[0102] EXT CONTROL: External control signal used to regulate the output of an external power supply (such as voltage and current).

[0103] (4) Internal charging module:

[0104] ICM SET: Integrated circuit setting pin, used to configure charging mode and other parameters (such as charging current and charging voltage).

[0105] ICM STAT: Integrated circuit status pin, used to indicate charging status and fault information, such as charging complete, overvoltage protection, etc.

[0106] (5) Control section:

[0107] Link Control 1: This section controls the connection to the device, including multiple control pins, such as:

[0108] POWER BUTTON: Power button used to turn the device on or off.

[0109] BATT AUX CONTROL: Battery Auxiliary Control, used to adjust the battery power mode.

[0110] Analog Control 1: The analog control section includes multiple analog input pins, such as:

[0111] ANALOG MIX1: Analog Mix 1, used to receive sensor signals (such as temperature, current).

[0112] Power Control 1: The power control section includes multiple power control pins, such as:

[0113] CHG OUT: Charging output, used to control the charging status.

[0114] POWER RST: Power Reset, used to reset the power system.

[0115] This utility model discloses a pool cleaning machine with two charging modes. In battery power mode, it enables cableless operation, improving equipment flexibility. When high power is required, it switches to external power supply mode, solving the problem of poor flexibility associated with equipment with a tow cable. In external power supply mode, it provides high-power output, ensuring efficient operation. In battery power mode, it optimizes energy management and extends working time, solving the problems of low power and short working time for equipment without a tow cable. An automated control system enables automatic switching of power supply modes, reducing user operational complexity and providing real-time status monitoring and fault diagnosis functions, allowing users to easily understand the equipment status and improving the user experience.

[0116] This utility model presents a pool cleaning machine with two charging modes, providing a hybrid power supply system that combines external power supply and battery power supply. This effectively solves the problems of poor flexibility with towed equipment and low power and short operating time with non-towed equipment. This solution not only achieves the dual goals of efficient energy management and flexible power supply, but also improves user experience and equipment reliability through intelligent control.

[0117] The above specific embodiments are used to explain and illustrate the present utility model, and are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made to the present utility model within the spirit and protection scope of the claims shall fall within the protection scope of the present utility model.

Claims

1. A pool cleaning machine with two charging and discharging modes, characterized in that, Including the main unit and power supply system, The power supply system includes a battery, a circuit board, a cable (1), and an external power supply box (2). The circuit board is equipped with a control system and a charging module. The main unit and the tow cable (1) are detachably connected. When the host, the cable (1), and the external power supply box (2) are connected in sequence, and the external power supply box (2) is connected to the mains power, electrical energy flows from the mains power to the host and the battery. The control system controls the external power supply box (2) to supply power to the host's load, allowing the host to perform cleaning operations. Simultaneously, the control system controls the external power supply box (2) to charge the battery via the charging module. When the host is disconnected from the tow cable (1), power is no longer supplied from the mains to the host and the battery. The control system controls the battery to supply power to the load of the host, and the host can perform cleaning work.

2. The pool cleaning machine with two charging and discharging modes according to claim 1, characterized in that, When the host and the tow cable (1) are connected, the battery and the circuit board are both electrically connected to the tow cable (1). When the host is disconnected from the tow cable (1), the battery and the circuit board are both disconnected from the tow cable (1).

3. The pool cleaning machine with two charging and discharging modes according to claim 1, characterized in that, The main unit includes a casing (6) and a sealed compartment (7). The sealed compartment (7) is located inside the casing (6). The battery and the circuit board are located inside the sealed chamber (7).

4. The pool cleaning machine with two charging and discharging modes according to claim 1, characterized in that, The power supply system includes cable two (12) and connector two (4). Both the battery and the circuit board are connected to the connector (4) via the cable (12). The second connector (4) is installed on the housing (6). The tow cable (1) includes a cable (11) and a connector (3). One end of the cable (11) is connected to a connector (3). The first connector (3) and the second connector (4) are detachably connected.

5. The pool cleaning machine with two charging and discharging modes according to claim 4, characterized in that, The external power supply box (2) includes a box body (13) and connector three (5). Connector 3 (5) is installed on the housing (13). The other end of cable one is connected to connector four (14). The connection between connector three (5) and connector four (14) is detachable.

6. The pool cleaning machine with two charging and discharging modes according to claim 5, characterized in that, The external power supply box (2) includes an external power cord (8) and a plug (9). The housing (13), the external power cord (8), and the plug (9) are connected in sequence, and the external power cord (8) can be connected to the mains power through the plug (9).

7. The pool cleaning machine with two charging and discharging modes according to claim 6, characterized in that, The external power supply box (2) includes a switch, an AC-DC power module, and a circuit board. The switch is mounted on the second circuit board. The AC-DC power module and the second circuit board are located inside the housing (13). When the switch is turned on, the electrical energy converted by the AC-DC power module is transmitted to the first cable (11). When the switch is turned off, the electrical energy converted by the AC-DC power module cannot be transmitted to the first cable (11).

8. The pool cleaning machine with two charging and discharging modes according to claim 1, characterized in that, When the external power supply box (2) is connected to the host, the control system switches the pool cleaner to the external power supply channel. The external voltage detection point and the external current detection point detect the voltage and current of the external power supply respectively, and adjust the output of the external power supply to supply power to the load through the external control signal. At the same time, the charging module receives the power energy of the external power supply through the internal charging input terminal to charge the battery. The control system sets the charging current of the charging module according to the working status, and detects the battery charging current in real time through the battery current detection point. The control system manages the external power input, load power supply and battery charging in real time. When the external power supply box (2) is disconnected from the main unit, the control system switches the pool cleaner to the battery power supply channel and inputs electrical energy to the load through the battery input terminal.

9. The pool cleaning machine with two charging and discharging modes as described in claim 8, characterized in that: The control system includes a voltage sampling circuit, a current sampling circuit, a bidirectional current sampling circuit, and a control logic unit. The voltage sampling circuit detects the voltage of the external power supply interface and the battery power supply. The current sampling circuit detects the current from the external power supply interface and the battery power supply. The bidirectional current sampling circuit detects the charging and discharging state of the battery. The control logic unit switches the power supply channel and adjusts the charging current of the charging module based on the voltage and current sampling results. When a voltage input is detected in the external power channel and the voltage is within a reasonable range, the control system controls the use of the external power channel to power the host and shuts down the battery power rail. When the battery voltage is detected to be lower than a preset threshold, the control system adjusts the charging current of the charging module according to the current consumption of the external power channel, without exceeding the total power of the external power supply, and opens the battery charging channel.

10. The pool cleaning machine with two charging and discharging modes as described in claim 8, characterized in that: The external power supply channel detects the power supply status of the external power supply box (2) through a voltage sampling circuit and a current sampling circuit; the charging module detects the charging status of the battery through a voltage sampling circuit and a current sampling circuit.

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